Changes for page PG1302 -- LoRaWAN Concentrator User Manual
Last modified by Kilight Cao on 2024/06/22 10:43
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... ... @@ -6,42 +6,49 @@ 6 6 7 7 8 8 9 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif]] 10 10 11 11 12 12 13 13 **PG1302 LoRaWAN Concentrator User Manual** 14 14 15 -[[image:1651796979665-130.png]] 16 16 17 -Document Version: 1.0.0 18 18 19 -Image Version: v1.0 20 20 21 21 18 +{{toc/}} 22 22 23 23 24 - {{toc numbered="true"/}}21 +---- 25 25 23 +(% class="wikigeneratedid" id="H" %) 24 +((( 25 + 26 +))) 26 26 28 +=== 1. Introduction === 27 27 30 +==== 1.1 What is PG1302 LoRaWAN Concentrator? ==== 28 28 29 -~1. Introduction 32 +((( 33 +The PG1302 is a multi-channel high performance transmitter/receiver designed to simultaneously receive several LoRa packets using random spreading factors on random channels. Its goal is to enable robust connection between a central wireless data concentrator and a massive amount of wireless end-points spread over a very wide range of distances. 34 +))) 30 30 31 - 1.1 What is PG1302 LoRaWAN Concentrator? 36 +((( 37 +The PG1302 is design to use with Raspberry Pi to build smart metering fixed networks and Internet of Things applications with up to 5000 nodes per km2 in moderately interfered environment. 38 +))) 32 32 33 -(% class="box" %) 34 34 ((( 35 -The PG1302 is a multi-channel high performance transmitter/receiver designed to simultaneously receive several LoRa packets using random spreading factors on random channels. Its goal is to enable robust connection between a central wireless data concentrator and a massive amount of wireless end-points spread over a very wide range of distances. 41 +PG1302 is fully compatible with RPi3/4, users can use the pre-build OS from Dragino to set up and easy to use the module by Web UI. Or install the raw lorawan driver in the exist OS. 42 +))) 36 36 37 - The PG1302 is design to use with Raspberry Pi to build smart metering fixed networks and Internet of Things applications with up to 5000 nodes per km2 in moderately interfered environment.38 - 39 - PG1302is fully compatible with RPi3/4, users can use the pre-build OS from Dragino to set up and easy to use the module by Web UI. Or install the raw lorawan driver in the exist OS.44 +((( 45 +((( 46 + 40 40 ))) 48 +))) 41 41 50 +==== 1.2 Features ==== 42 42 43 -1.2 Features 44 - 45 45 * Base on Semtech SX1302 solution 46 46 * Support Raspberry Pi 3B/3B+/4 47 47 * Up to -140dBm sensitivity ... ... @@ -49,20 +49,20 @@ 49 49 * Mini-PCIe Interface 50 50 * Converter board to support Raspberry Pi 51 51 52 -1.3 General Interfaces 59 +==== 1.3 General Interfaces ==== 53 53 54 54 * SPI interface for LoRa 55 55 * Power Input: 5v, 1A 56 56 * 1 x I-PEX for LoRa 57 57 58 -1.4 Pin Mapping 65 +==== 1.4 Pin Mapping ==== 59 59 60 60 [[image:1651743282627-547.png||height="402" width="425"]] 61 61 62 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.gif]] 63 63 64 -1.5 LEDs 65 65 71 +==== 1.5 LEDs ==== 72 + 66 66 TX: Blink when transmit a packet 67 67 68 68 RX: Blink when receive a packet ... ... @@ -69,12 +69,14 @@ 69 69 70 70 Config: Always ON 71 71 72 -1.6 Power Consumption 73 73 80 +==== 1.6 Power Consumption ==== 81 + 74 74 TBD 75 75 76 -1.7 Applications 77 77 85 +==== 1.7 Applications ==== 86 + 78 78 * Smart Buildings & Home Automation 79 79 * Logistics and Supply Chain Management 80 80 * Smart Metering ... ... @@ -82,19 +82,20 @@ 82 82 * Smart Cities 83 83 * Smart Factory 84 84 85 -2. Example: Set up as LoRaWAN gateway. 94 +=== 2. Example: Set up as LoRaWAN gateway. === 86 86 87 - 2.1 System structure 96 +==== 2.1 System structure ==== 88 88 89 - This example is an example to show how to set up the PG1302 + RPi as a LoRaWAN gateway to use with [[TheThingsNetwork>>http://www.thethingsnetwork.org/]](TTN) LoRaWAN server. . Set up method for other server are similar。98 + This example is an example to show how to set up the PG1302 + RPi as a LoRaWAN gateway to use with [[TheThingsNetwork>>url:http://www.thethingsnetwork.org/]](TTN) LoRaWAN server. 90 90 100 + Set up method for other server are similar. 101 + 91 91 (% style="text-align:center" %) 92 92 [[image:1651743698677-436.png||height="457" width="686"]] 93 93 94 94 95 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.gif]] 96 96 97 -2.2 Hardware Installation 107 +==== 2.2 Hardware Installation ==== 98 98 99 99 **~ Important Notice: **Please power the RPI with 5V,3A cable. 100 100 ... ... @@ -101,44 +101,54 @@ 101 101 (% style="text-align:center" %) 102 102 [[image:1651743803032-803.png]] 103 103 104 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.gif]] 105 105 106 -3. Install the software? 107 107 116 +=== 3. Install the software? === 117 + 108 108 There are two ways to install software in RPi4 to use PG1302. 109 109 110 110 * Flash SD card with Dragino pre-build image which support Web UI. 111 111 * Install lora packet forwarder in existing RPi OS. 112 112 113 -4. Flash with pre-build image 123 +=== 4. Flash with pre-build image === 114 114 115 - 4.1 Download the dragino image for RPI 125 +==== 4.1 Download the dragino image for RPI ==== 116 116 117 117 Download PG1302_for_Rpi4_64_with_webui from 118 118 119 119 [[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]] 120 120 121 -4.2 Flash the image to SD card 122 122 123 - :132 +==== 4.2 Flash the image to SD card ==== 124 124 134 + Flash the image to SD card: 135 + 125 125 (% style="text-align:center" %) 126 126 [[image:1651744119133-233.png||height="373" width="621"]] 127 127 128 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.jpg]]Note: Download the flash tool following this link139 + Note: Download the flash tool following this link 129 129 130 130 [[https:~~/~~/www.balena.io/etcher/>>https://www.balena.io/etcher/]] 131 131 132 -4.3 Access the Linux console. 133 133 134 - Connect theRPI Ethernet port to your router, RPi will obtain an IP addressfrom your router. In therouter’s management portal, you should be able to find what IP address the routerhas assigned to the RPI. Youcanuse this IP toconnectthe WEB UI or SSH access of RPI.144 +==== 4.3 Access the Linux console ==== 135 135 136 - Make sure your PC and the RPI is in the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]]) to access it. Below are screenshots 146 +((( 147 + Connect the RPI Ethernet port to your router, RPi will obtain an IP address from your router. In the router’s management portal, you should be 148 +))) 137 137 150 +((( 151 + able to find what IP address the router has assigned to the RPI. You can use this IP to connect the WEB UI or SSH access of RPI. 152 +))) 153 + 154 +((( 155 + Make sure your PC and the RPI is in the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]]) to access it. Below are screenshots 156 +))) 157 + 158 + 138 138 (% style="text-align:center" %) 139 139 [[image:1651744193675-591.png||height="450" width="466"]] 140 140 141 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.jpg]] 142 142 143 143 The account details for Web Login are: 144 144 ... ... @@ -157,18 +157,18 @@ 157 157 (% style="text-align:center" %) 158 158 [[image:1651744358515-107.png||height="366" width="581"]] 159 159 160 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.jpg]] 4.4 Access the WebUI of RPi4. 161 161 162 - .1Homepage181 +==== 4.4 Access the WebUI of RPi4. ==== 163 163 164 - Open a browseron the PC and type the RPI ipaddress183 +===== 4.4.1 Home page ===== 165 165 166 - [[http:~~/~~/IP_ADDRESS****>>url:http://192.168.1.xx/]](IftheIPisassignedbyuplinkrouter)185 + Open a browser on the PC and type the RPI ip address 167 167 187 + [[http:~~/~~/IP_ADDRESS** **>>url:http://192.168.1.xx/]] (If the IP is assigned by uplink router) 168 168 169 - 189 + You will see the login interface of RPI as shown below. 170 170 171 - 191 + The account details for Web Login are: 172 172 173 173 **~ User Name: root** 174 174 ... ... @@ -177,9 +177,8 @@ 177 177 (% style="text-align:center" %) 178 178 [[image:1651744457761-993.png||height="352" width="621"]] 179 179 180 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.jpg]] 181 181 182 -4.4.2 LoRa Page 201 +===== 4.4.2 LoRa Page ===== 183 183 184 184 This page shows the LoRa Radio Settings. There are a set of default frequency band according to LoRaWAN protocol, and user can customize the band* as well. 185 185 ... ... @@ -186,7 +186,6 @@ 186 186 (% style="text-align:center" %) 187 187 [[image:1651744554845-970.png||height="328" width="621"]] 188 188 189 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.jpg]] 190 190 191 191 Different PG1302 hardware version can support different frequency range: 192 192 ... ... @@ -204,71 +204,61 @@ 204 204 [[http:~~/~~/wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway>>url:http://wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway]] 205 205 206 206 207 -4.4.3 LoRaWAN Page 225 +===== 4.4.3 LoRaWAN Page ===== 208 208 209 - 227 +====== 4.4.3.1 Semtech UDP ====== 210 210 211 211 212 212 (% style="text-align:center" %) 213 213 [[image:1651744767914-283.png||height="352" width="621"]] 214 214 233 + Note *: See this instruction for how to configure TTN. 215 215 216 -[[i mage:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.jpg]]235 + [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_TTN>>url:https://wiki.dragino.com/index.php?title=Notes_for_TTN||style="background-color: rgb(255, 255, 255);"]] 217 217 218 - Note *: See this instruction for how to configure TTN. 219 219 220 - [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_TTN>>url:https://wiki.dragino.com/index.php?title=Notes_for_TTN]]238 +====== 4.4.3.2 Basic Station ====== 221 221 222 - 223 -4.4.3.2 Basic Station 224 - 225 225 (% style="text-align:center" %) 226 226 [[image:1651744890629-683.png||height="380" width="621"]] 227 227 228 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.jpg]]243 + Note *: See this instruction for how to configure TTN. 229 229 230 - Note *: SeethisnstructionforhowtofigureTTN.245 + [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core>>url:https://wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core]] 231 231 232 - [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core>>url:https://wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core]] 233 233 248 +===== 4.4.4 LogRead ===== 234 234 235 -4.4.4 Lo gRead250 +====== 4.4.4.1 LoRa Log ====== 236 236 237 - 4.4.4.1 LoRa Log 238 - 239 239 (% style="text-align:center" %) 240 240 [[image:1651744955955-452.png||height="571" width="621"]] 241 241 242 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.jpg]]255 + Show the frequency for LoRa Radio and traffics. 243 243 244 - Show the frequency for LoRa Radio and traffics. 245 245 258 +====== 4.4.4.2 System Log ====== 246 246 247 - 4.4.4.2SystemLog260 + Show system log. 248 248 249 - Show system log. 250 - 251 251 (% style="text-align:center" %) 252 252 [[image:1651745003470-264.png||height="477" width="621"]] 253 253 254 254 255 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.jpg]] 256 256 257 -4.4.4.3 Record Log 267 +====== 4.4.4.3 Record Log ====== 258 258 269 +**~ Record the system log.** 259 259 260 -**Record the system log.** 261 - 262 262 (% style="text-align:center" %) 263 263 [[image:1651745069814-662.png||height="144" width="621"]] 264 264 265 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.jpg]] 266 266 267 -5. Install stand alone LoRa Packet Forwarder. 275 +=== 5. Install stand alone LoRa Packet Forwarder. === 268 268 269 - 5.1 OS requirement 277 +==== 5.1 OS requirement ==== 270 270 271 - 279 + RPI in this example is RPI model 4B with fresh Raspbian OS install. 272 272 273 273 pi@raspberrypi:~~$ cat /etc/os-release 274 274 ... ... @@ -291,39 +291,36 @@ 291 291 BUG_REPORT_URL="http:~/~/www.raspbian.org/RaspbianBugs" 292 292 293 293 294 -5.2 Get Gateway ID in Raspberry and input this in TTN v3. 302 +==== 5.2 Get Gateway ID in Raspberry and input this in TTN v3. ==== 295 295 296 - 304 + In RPI, run below command to get a Gateway ID 297 297 298 - 306 + (% class="mark" %)ifconfig eth0 299 299 300 300 (% style="text-align:center" %) 301 301 [[image:1651745210205-512.png||height="130" width="621"]] 302 302 303 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.gif]] 304 304 305 - Make sure to select legacy packet forwarder.312 + We got the ether (eth0 MAC) address is b8:27:eb:49:62:bc). Add ffff at the end and remove “:” to get the gateway ID: b827ebxxxxbcffff. Input this to TTN v3. 306 306 314 + Make sure to select legacy packet forwarder. 315 + 307 307 (% style="text-align:center" %) 308 308 [[image:1651745267862-321.png||height="526" width="621"]] 309 309 310 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.jpg]] 311 311 312 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.jpg]] 313 313 314 314 (% style="text-align:center" %) 315 315 [[image:1651745306744-481.png||height="478" width="621"]] 316 316 324 +After set up, the status should show not connected as below: 325 + 317 317 (% style="text-align:center" %) 318 318 [[image:1651745366987-458.png||height="363" width="621"]] 319 319 320 -After set up, the status should show not connected as below: 321 321 322 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.jpg]]330 +===== 5.2.1 Download and install LoRaWAN packet forwarder ===== 323 323 324 -5.2.1 Download and install LoRaWAN packet forwarder 325 - 326 - 327 327 Enable SPI and I2C first: 328 328 329 329 a)SPI needs to be enabled on the Raspberry Pi ... ... @@ -340,20 +340,14 @@ 340 340 (% style="text-align:center" %) 341 341 [[image:image-20220505181135-2.png]] 342 342 343 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image044.jpg]] 344 344 345 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image046.jpg]] 346 346 347 347 348 - 349 - 350 - 351 351 In RPI , Fist: Enter root account: 352 352 353 353 (% style="text-align:center" %) 354 354 [[image:1651745583363-614.png]] 355 355 356 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image048.jpg]] 357 357 358 358 and then run: 359 359 ... ... @@ -366,7 +366,6 @@ 366 366 (% style="text-align:center" %) 367 367 [[image:1651745611629-818.png]] 368 368 369 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image050.gif]] 370 370 371 371 This will download the packet forwarder package from Dragino Server to RPI, and start install the package. 372 372 ... ... @@ -375,30 +375,27 @@ 375 375 (% style="text-align:center" %) 376 376 [[image:1651745657252-173.png||height="426" width="621"]] 377 377 378 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image052.jpg]] 379 379 380 -5. 5.2 Config Gateway ID, Frequency Band and Server address377 +===== 5.2.2 Config Gateway ID, Frequency Band and Server address ===== 381 381 382 - 379 + After installation, user can find the configuration file in** /etc/lora/ **Replace the gateway ID we got above to the **gateway_ID** in file **local_conf.json** 383 383 384 - 381 + The default LoRaWAN server points to localhost, user need to put the correct server address to the server_address field in file **local_conf.json**, like below. 385 385 386 386 (% style="text-align:center" %) 387 387 [[image:1651745709709-887.png||height="820" width="621"]] 388 388 389 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image054.jpg]] 390 390 391 - 387 + User can find the TTN v3 server address from: 392 392 393 - 389 + [[Server Addresses ~| The Things Stack for LoRaWAN (thethingsindustries.com)>>url:https://www.thethingsindustries.com/docs/getting-started/server-addresses/#deployments]] 394 394 395 395 396 - 392 + And the default frequency band is US915 in **global_conf.json** file. 397 397 398 398 (% style="text-align:center" %) 399 399 [[image:1651745838008-820.png||height="650" width="621"]] 400 400 401 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image056.jpg]] 402 402 403 403 * If user want to change to other frequency bands, User can copy the file from **/etc/lora/cfg-302 **and put it into** /etc/lora/global_conf.json.** 404 404 ... ... @@ -415,53 +415,50 @@ 415 415 (% style="text-align:center" %) 416 416 [[image:1651745984006-868.png]] 417 417 418 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image060.jpg]] 419 419 420 420 * If user wants to change to other LoRaWAN server, modify the **global_conf.json** file. 421 421 422 -5.2.3 Check result 416 +(% class="wikigeneratedid" %) 417 +((( 418 + 419 +))) 423 423 424 - Run belowcommandtorestartthe dragino_fwd:421 +===== 5.2.3 Check result ===== 425 425 426 - sudo systemctlstopdraginofwd423 + Run below command to restart the dragino_fwd: 427 427 428 - sudo systemctl st artdraginofwd425 + sudo systemctl stop draginofwd 429 429 430 - debugchecktheruingstatusoffwd:427 + sudo systemctl start draginofwd 431 431 432 - sudosystemctlstatusdraginofwd429 + debug check the ruing status of fwd: 433 433 431 + sudo systemctl status draginofwd 432 + 434 434 (% style="text-align:center" %) 435 435 [[image:1651746045057-414.png]] 436 436 437 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image062.jpg]] 438 438 439 - 437 + The dragino_fwd will start with the new gateway ID and TTN v3 should show the connection ok: 440 440 441 441 (% style="text-align:center" %) 442 442 [[image:1651746078253-168.png||height="372" width="621"]] 443 443 444 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image064.jpg]] 445 445 443 + We can check dragino_fwd running states in RPi by running: 446 446 447 - We canheckdragino_fwdrunning states in RPi by running:445 + //**sudo journalctl -u draginofwd -f**// 448 448 449 - sudo journalctl -u draginofwd -f 450 - 451 451 (% style="text-align:center" %) 452 452 [[image:1651746111963-838.png]] 453 453 454 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image066.gif]]450 + If there are LoRaWAN nodes transmits nearby, we can see the traffic in TTN v3 –> Gateway ~-~-> Live data 455 455 456 - 457 - If there are LoRaWAN nodes transmits nearby, we can see the traffic in TTN v3 –> Gateway ~-~-> Live data 458 - 459 459 (% style="text-align:center" %) 460 460 [[image:1651746139304-966.png||height="326" width="621"]] 461 461 462 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image068.jpg]] 463 463 464 -5.2.4 Commands to handle service 456 +===== 5.2.4 Commands to handle service ===== 465 465 466 466 * **Stop** dragino_fwd service: sudo systemctl stop draginofwd 467 467 * **Disable** dragino_fwd auto run after boot: sudo systemctl disable draginofwd ... ... @@ -469,24 +469,24 @@ 469 469 * **Auto run** dragino_fwd after boot: sudo systemctl enable draginofwd 470 470 * **Show status** of dragino_fwd: sudo systemctl status draginofwd 471 471 472 -6. Order Info 464 +=== 6. Order Info === 473 473 474 - Part Number: 466 + Part Number: **PG1302-XX** Or Part Number: **PG1302-PI-XX **(Include RPi converter board for RPI 3/4) 475 475 476 -**~ XX:** 468 +**~ XX:** 477 477 478 478 * 868 (For Bands: EU868,IN865) 479 479 * 915 (For Bands: US915,AU915,AS923,KR920) 480 480 * 470 (For Band: CN470) 481 481 482 -7. Packing Info 474 +=== 7. Packing Info === 483 483 484 -**~ PG1302 Package Includes**: 476 +**~ PG1302 Package Includes**: 485 485 486 486 * PG1302 x 1 487 487 * LoRa Antenna x 1 488 488 489 -**~ PG1302-PI Package Includes**: 481 +**~ PG1302-PI Package Includes**: 490 490 491 491 * PG1302 x 1 492 492 * LoRa Antenna x 1 ... ... @@ -493,7 +493,7 @@ 493 493 * RPi3/4 converter PCB 494 494 * Screws to hole converter PCB on RPI. 495 495 496 -8. Reference 488 +=== 8. Reference === 497 497 498 498 * Datasheet, User Manual & Software Download: 499 499 ... ... @@ -500,12 +500,9 @@ 500 500 [[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>url:https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]] 501 501 502 502 503 -9. Support 495 +=== 9. Support === 504 504 505 505 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule. 506 506 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to 507 507 508 508 [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]] 509 - 510 - 511 -